add optional fasta argument to ensemblvep

modules/ensemblvep/main.nf

@@ -13,6 +13,7 @@ process ENSEMBLVEP {
     val   species
     val   cache_version
     path  cache
+    path  fasta
     path  extra_files
 
     output:
@@ -27,6 +28,8 @@ process ENSEMBLVEP {
     def args = task.ext.args ?: ''
     def prefix = task.ext.prefix ?: "${meta.id}"
     def dir_cache = cache ? "\${PWD}/${cache}" : "/.vep"
+    def reference = fasta ? "--fasta $fasta" : ""
+
     """
     mkdir $prefix
 
@@ -34,6 +37,7 @@ process ENSEMBLVEP {
         -i $vcf \\
         -o ${prefix}.ann.vcf \\
         $args \\
+        $reference \\
         --assembly $genome \\
         --species $species \\
         --cache \\

modules/ensemblvep/meta.yml

@@ -36,6 +36,11 @@ input:
       type: file
       description: |
         path to VEP cache (optional)
+  - fasta:
+      type: file
+      description: |
+        reference FASTA file (optional)
+      pattern: "*.{fasta,fa}"
   - extra_files:
       type: tuple
       description: |

tests/modules/ensemblvep/main.nf

@@ -10,5 +10,7 @@ workflow test_ensemblvep {
         file(params.test_data['sarscov2']['illumina']['test_vcf'], checkIfExists: true)
     ]
 
-    ENSEMBLVEP ( input, "WBcel235", "caenorhabditis_elegans", "104", [], [] )
+    fasta = file(params.test_data['sarscov2']['genome']['genome_fasta'], checkIfExists: true)
+
+    ENSEMBLVEP ( input, "WBcel235", "caenorhabditis_elegans", "104", [], fasta, [] )
 }